Examples with ValueSerializationException org.qi4j.api.value.ValueSerializationException used on opensource projects

Example 21 with ValueSerializationException

use of org.qi4j.api.value.ValueSerializationException in project qi4j-sdk by Qi4j.

the class JacksonValueDeserializer method readArrayInCollection.

@Override
protected <T> Collection<T> readArrayInCollection(JsonParser input, Function<JsonParser, T> deserializer, Collection<T> collection) throws Exception {
    JsonToken token = input.getCurrentToken();
    if (token == JsonToken.VALUE_NULL) {
        return null;
    }
    if (token != JsonToken.START_ARRAY) {
        token = input.nextToken();
    }
    if (token == JsonToken.VALUE_NULL) {
        return null;
    }
    if (token != JsonToken.START_ARRAY) {
        throw new ValueSerializationException("Expected an array start at " + input.getCurrentLocation().toString());
    }
    while (input.nextToken() != JsonToken.END_ARRAY) {
        T element = deserializer.map(input);
        collection.add(element);
    }
    return collection;
}

Example 22 with ValueSerializationException

use of org.qi4j.api.value.ValueSerializationException in project qi4j-sdk by Qi4j.

the class StaxValueDeserializer method putArrayNodeInCollection.

@Override
protected <T> void putArrayNodeInCollection(Node inputNode, Function<Node, T> deserializer, Collection<T> collection) throws Exception {
    if (inputNode == null) {
        return;
    }
    if (!(inputNode instanceof Element)) {
        throw new ValueSerializationException("Expected an Element but got " + inputNode);
    }
    NodeList arrayValues = inputNode.getChildNodes();
    for (int arrayValuesIndex = 0; arrayValuesIndex < arrayValues.getLength(); arrayValuesIndex++) {
        Node arrayValue = arrayValues.item(arrayValuesIndex);
        T value = deserializer.map(arrayValue.getFirstChild());
        collection.add(value);
    }
}

Example 23 with ValueSerializationException

use of org.qi4j.api.value.ValueSerializationException in project qi4j-sdk by Qi4j.

the class StaxValueDeserializer method readPlainValue.

@Override
protected Object readPlainValue(XMLEventReader input) throws Exception {
    if (!input.hasNext()) {
        return null;
    }
    XMLEvent nextEvent = input.nextEvent();
    if (nextEvent.getEventType() == XMLEvent.START_ELEMENT && "null".equals(nextEvent.asStartElement().getName().getLocalPart())) {
        input.nextTag();
        return null;
    }
    if (nextEvent.getEventType() != XMLEvent.CHARACTERS) {
        throw new ValueSerializationException("Expected characters but got: " + nextEvent);
    }
    String stringValue = nextEvent.asCharacters().getData();
    return detectAndConvertStringValue(stringValue);
}

Example 24 with ValueSerializationException

use of org.qi4j.api.value.ValueSerializationException in project qi4j-sdk by Qi4j.

the class StaxValueDeserializer method getObjectFieldValue.

@Override
@SuppressWarnings("unchecked")
protected <T> T getObjectFieldValue(Node inputNode, String key, Function<Node, T> valueDeserializer) throws Exception {
    if (inputNode == null) {
        return null;
    }
    Node objectNode;
    if ("value".equals(inputNode.getLocalName())) {
        objectNode = getDirectChildNode(inputNode, "object");
    } else {
        objectNode = inputNode;
    }
    if (objectNode == null) {
        return null;
    }
    if (!"object".equals(objectNode.getLocalName())) {
        throw new ValueSerializationException("Expected an object value but got: " + objectNode);
    }
    Node fieldNode = getObjectFieldNode(objectNode, key);
    if (fieldNode == null) {
        return null;
    }
    Node valueElement = getDirectChildNode(fieldNode, "value");
    Node valueNode = valueElement.getFirstChild();
    if (valueNode == null) {
        return (T) "";
    }
    if (valueNode.getNodeType() == Node.ELEMENT_NODE && "null".equals(valueNode.getLocalName())) {
        return null;
    }
    T value = valueDeserializer.map(valueNode);
    return value;
}

Example 25 with ValueSerializationException

use of org.qi4j.api.value.ValueSerializationException in project qi4j-sdk by Qi4j.

the class EntityResource method post.

@Override
public Representation post(Representation entityRepresentation, Variant variant) throws ResourceException {
    Usecase usecase = UsecaseBuilder.newUsecase("Update entity");
    EntityStoreUnitOfWork unitOfWork = entityStore.newUnitOfWork(usecase, module, System.currentTimeMillis());
    EntityState entity = getEntityState(unitOfWork);
    Form form = new Form(entityRepresentation);
    try {
        final EntityDescriptor descriptor = entity.entityDescriptor();
        // Parse JSON into properties
        for (PropertyDescriptor persistentProperty : descriptor.state().properties()) {
            if (!persistentProperty.isImmutable()) {
                String formValue = form.getFirstValue(persistentProperty.qualifiedName().name(), null);
                if (formValue == null) {
                    entity.setPropertyValue(persistentProperty.qualifiedName(), null);
                } else {
                    entity.setPropertyValue(persistentProperty.qualifiedName(), valueSerialization.deserialize(persistentProperty.valueType(), formValue));
                }
            }
        }
        for (AssociationDescriptor associationType : descriptor.state().associations()) {
            String newStringAssociation = form.getFirstValue(associationType.qualifiedName().name());
            if (newStringAssociation == null || newStringAssociation.isEmpty()) {
                entity.setAssociationValue(associationType.qualifiedName(), null);
            } else {
                entity.setAssociationValue(associationType.qualifiedName(), EntityReference.parseEntityReference(newStringAssociation));
            }
        }
        for (AssociationDescriptor associationType : descriptor.state().manyAssociations()) {
            String newStringAssociation = form.getFirstValue(associationType.qualifiedName().name());
            ManyAssociationState manyAssociation = entity.manyAssociationValueOf(associationType.qualifiedName());
            if (newStringAssociation == null) {
                // Remove "left-overs"
                for (EntityReference entityReference : manyAssociation) {
                    manyAssociation.remove(entityReference);
                }
                continue;
            }
            BufferedReader bufferedReader = new BufferedReader(new StringReader(newStringAssociation));
            String identity;
            try {
                // Synchronize old and new association
                int index = 0;
                while ((identity = bufferedReader.readLine()) != null) {
                    EntityReference reference = new EntityReference(identity);
                    if (manyAssociation.count() < index && manyAssociation.get(index).equals(reference)) {
                        continue;
                    }
                    try {
                        unitOfWork.entityStateOf(reference);
                        manyAssociation.remove(reference);
                        manyAssociation.add(index++, reference);
                    } catch (EntityNotFoundException e) {
                    // Ignore this entity - doesn't exist
                    }
                }
                // Remove "left-overs"
                while (manyAssociation.count() > index) {
                    manyAssociation.remove(manyAssociation.get(index));
                }
            } catch (IOException e) {
            // Ignore
            }
        }
        for (AssociationDescriptor associationType : descriptor.state().namedAssociations()) {
            String newStringAssociation = form.getFirstValue(associationType.qualifiedName().name());
            NamedAssociationState namedAssociation = entity.namedAssociationValueOf(associationType.qualifiedName());
            if (newStringAssociation == null) {
                // Remove "left-overs"
                for (String name : namedAssociation) {
                    namedAssociation.remove(name);
                }
                continue;
            }
            Set<String> names = new HashSet<>();
            BufferedReader bufferedReader = new BufferedReader(new StringReader(newStringAssociation));
            String line;
            try {
                while ((line = bufferedReader.readLine()) != null) {
                    String name = line;
                    line = bufferedReader.readLine();
                    if (line == null) {
                        break;
                    }
                    String identity = line;
                    EntityReference reference = new EntityReference(identity);
                    try {
                        unitOfWork.entityStateOf(reference);
                        namedAssociation.remove(name);
                        namedAssociation.put(name, reference);
                        names.add(name);
                    } catch (EntityNotFoundException e) {
                    // Ignore this entity - doesn't exist
                    }
                }
                // Remove "left-overs"
                for (String assocName : Iterables.toList(namedAssociation)) {
                    if (!names.contains(assocName)) {
                        namedAssociation.remove(assocName);
                    }
                }
            } catch (IOException e) {
            // Ignore
            }
        }
    } catch (ValueSerializationException | IllegalArgumentException e) {
        throw new ResourceException(Status.SERVER_ERROR_INTERNAL, e);
    }
    try {
        unitOfWork.applyChanges().commit();
    } catch (ConcurrentEntityStateModificationException e) {
        throw new ResourceException(Status.CLIENT_ERROR_CONFLICT);
    } catch (EntityNotFoundException e) {
        throw new ResourceException(Status.CLIENT_ERROR_GONE);
    }
    getResponse().setStatus(Status.SUCCESS_RESET_CONTENT);
    return new EmptyRepresentation();
}